Interferon induction of natural killer cytotoxicity in human neonates.

Interferon induction of natural killer cytotoxicity in human neonates.
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干扰素诱导人类新生儿自然杀伤细胞毒性。

DOI:
10.1016/s0022-3476(81)80699-3
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发表时间:
1981
期刊:
The Journal of pediatrics
影响因子:
--
通讯作者:
Loo,LS
Loo,LS
中科院分区:
--
文献类型:
--
作者:
Kohl,S;Frazier,JJ;Greenberg,SB;Pickering,LK;Loo,LS

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低自然杀伤细胞毒性与严重的单纯疱疹病毒感染有关。新生儿单个核细胞对HSV感染(P<0.001)和未感染(P<0.005)靶细胞的NKC均显著低于成人MC。在适当的条件下,外源性人白细胞干扰素可使新生儿和成人的MC对NKC的杀伤作用增强。虽然新生儿和成人MC对干扰素的敏感性相似,但新生儿MC反应缺乏一致性(P=0.05)。23%(4/17)的新生儿MC样本在干扰素存在下不响应NKC增加,与成人MC不同,所有成人MC均显示NKC增加。新生儿MC对成人MC-NKC无抑制作用。这些数据证明了干扰素作为新生儿NKC刺激剂的疗效,但表明新生儿细胞的异质性反应。我们对干扰素治疗新生儿严重病毒感染的临床试验的前景感到鼓舞。我们敦促在这些试验中纳入免疫监测。
Low natural killer cytotoxicity has been associated with serious herpes simplex virus infections. Neonates' mononuclear cells had significantly lower NKC to HSV infected (P<0.001) and uninfected (P<0.005) target cells than did adults' MC. Under appropriate conditions, both neonates' and adults' MC to NKC was increased by exogenous human leukocyte interferon. Although neonates' and adults' MC had a similar sensitivity to interferon, there was a significant (P=0.05) lack of consistency in neonates' MC response. Twenty-three percent (4/17) of neonates' MC samples did not respond with increased NKC in the presence of interferon, unlike adults' MC, all of which demonstrated increased NKC. Neonates' MC did not suppress adults' MC-NKC. These data demonstrate the efficacy of interferon as an NKC stimulator in the neonate, but indicate a heterogenous response of neonatal cells. We are encouraged with the prospect of clinical trials of interferon to treat severe viral infections in neonates. We urge the inclusion of immune surveillance in these trials.
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